/**
 * #      1111
 * 名称   有效括号的嵌套深度
 * 链接   https://leetcode-cn.com/problems/maximum-nesting-depth-of-two-valid-parentheses-strings
 * 题解   [379](https://leetcode-cn.com/problems/maximum-nesting-depth-of-two-valid-parentheses-strings/solution)
 * 通过率 77.5%
 * 难道   中等
 */

